Finding the Fourth Proportional to 20,712,928.72, 31,068,274.62 and 6,335,998.14
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Solution
The fourth proportional to 20,712,928.72, 31,068,274.62 and 6,335,998.14 is: 9,503,655.08
Step by Step Solution
- Step 1: Write the proportion equation
20,712,928.72 : 31,068,274.62 = 6,335,998.14 : x - Step 2: Convert to fraction form
20,712,928.72/31,068,274.62 = 6,335,998.14/x - Step 3: Cross multiply
20,712,928.72x = 31,068,274.62 × 6,335,998.14 - Step 4: Simplify right side
20,712,928.72x = 196,848,530,205,329.19 - Step 5: Solve for x
x = 196,848,530,205,329.19/20,712,928.72 - Step 6: Final answer
x = 9,503,655.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.